No network in Network Manager, Cant connect to wifi. But airodump-ng working

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How's it going, then, Nivla?
Any luck then?
(Letting us know the outcome helps other people who run into the same problem).
Did your wifi drop our after you used a particular program (say, airodump?), or did it just not work one day when you booted up?
You might find a workaround by uninstalling & reinstalling the modules, or you might fix it by dist-upgrading and installing the newest driver.
Do keep us updated if you can.
Cheers.

1- after installation wifi turned off and i can't turn it on.
2- i folllow some solutions, i solved the problem and "Wifi ON" and i can connect.
3- the wifi still connected 1 hours max, and suddenly connection lost but icon appear "connected".
4- i turned off wifi, then turned it on and I try connect to network = laoding... connection failed
reboot the system > wifi connected to network > after 30 minutes : 1 hours > suddenly connection lost ...

really we need help (i have the same laptop Lenovo Legion Y520 / and the same realtek rtl8821ae)

How's it going, then, Nivla?
Any luck then?
(Letting us know the outcome helps other people who run into the same problem).
Did your wifi drop our after you used a particular program (say, airodump?), or did it just not work one day when you booted up?
You might find a workaround by uninstalling & reinstalling the modules, or you might fix it by dist-upgrading and installing the newest driver.
Do keep us updated if you can.
Cheers.

So Ive been fixing it for the past week and found out , my wifi works after i delete kali in my laptop and dual boot it again but there is still some bugs.

Airodump or wash or aireplay only works like for a particular time and it stops.

Normally airodump it shows the networks near you right and then suddenly it started to stop randomly and the networks slowly dissapear one by one until nothing is left.

Then i need to do ipconfig wlan0mon down to restart it again and it works fine again .
So the thing is I need to keep typing ifconfig wlan0mon down to keep it working when capturing data.Help?

I'm not sure what you mean by this ...can you explain more clearly?
Some drivers are just 'buggy', you might need to keep uninstalling and reinstalling the module (or bringing the interface down then up again) to keep it working.
Or try regularly checking and installing the latest driver -that might be your best bet.

I'm not sure what you mean by this ...can you explain more clearly?
Some drivers are just 'buggy', you might need to keep uninstalling and reinstalling the module (or bringing the interface down then up again) to keep it working.
Or try regularly checking and installing the latest driver -that might be your best bet.

I mean i deleted the whole kali linux partition in my laptop and dual booted it over again.